Double-locking holder for lighting fixtures



Feb. 17. 1925.

F. W WAKEFIELD DOUBLE LOCKING HOLDER FOR LIGHTING F IXTURES Filed Feb;1922 @MQ Q Patented Feb. 17, 1 925.

UNITED? STATES FREDERICK W. WAKEFIELD,

I 1,526,686 PATENT OFFICE.

or VERMILION, OHIO, ASSIGNOR TO THE r. w. WAKE- FIELD BRASS COMPANY.

DOUBLE-LOCKING HOLDER, FOR LIGHTING FIXTURES.

Application filed February 17, 1922. Serial No. 537,281.

To all whom it may concern.

Be it known that I, FREDERICK IV. WAKE- FIELD, a citizen of the UnitedStates, and a resident of Vermilion, county of Erie, and State of Ohio,have invented a new and useful Improvement in Double-Locking Holder forLighting Fixtures, of which the following is a specification, theprinciple of the invention being herein explained and the best mode inwhich I have contemplated applying that principle so as to distinguishit from other inventions.

I The present invention relates to a lighting fixture in which theholderfor a globe is provided with means for engagement with the globeitself without the use of screws, and added provision is also made forpositively locking the holding means in place when the fixture isassembled. To the accomplishment of the foregoing and related ends, saidinvention, then, consists of the means hereinafter fully described andparticularly pointed out in the claims.

The annexed drawing and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the invention may be used.

In said annexed drawing Fig. l is a vertical sectional view through theglobe holder; Fig. 2 is an enlarged sectional View showing the globelocked in place; Fig. 3 is a sectional view on the a line 33 of Fig. 1;Fig. 4 is a perspective view of one of the spring fingers; and Fig. 5 isa sectional view of a portion of the holder with the canopy removed,showing the parts in releasing position in dotted lines.

As shown in the drawings the fixture consists of the usual lower canopy5, with a supporting chain 2 having a ceiling support (not shown) at theother end. The chain is a secured to an inverted cup 6 or holder, the

The globe holding means comprise three spring fingers having angled ends31 apertured to receive the screws 32 by which they are secured to thecup and the lower ends of the fingers have rectangular bends to form thereceiving ends for the globe. The fingers extend from the cup outwardlyand downwardly and just above the horizontal portion 32 are providedwith tangs 33 punched up from the fingers.

A holder disk 34 is employed which is merely a fiat plate with one side35 cut away to form a hand opening. This disk or plate is provided withtwo narrow slots 36 and one wider slot 37 and the fingers are threadedthrough these slots so that the plate is normally supported by thefingers and is prevented from rising by the three tangs The wide slot 37is adjacent the cut away portion 35 and the slot is wide enough to allowthe finger to be pressed inwardlysufliciently for the tang to passthrough the slot allowing the plate to rise into the position shown indotted lines in Fig. 5 and this releases the finger which assumes theposition shown in dotted lines in Fig. 5 to allow the globe to beremoved.

When the globe is to be inserted it is placed in the fingers in theslots 36 and the plate or disk is lowered to engage the third finger andwhen thus engaged the plate is below and in engagement with the tang sothat the globe is locked in place.

The usual type of canopy 5 is employed which fits over the holding cupand rests thereupon, and the canopy is adapted to fit snugly against theperiphery of the holder disk to positively prevent upward movement ofthe holder relative to the spring arms so that when the canopy is inplace, the position of the spring arms in the disk holder is positivelysecured and the globe cannot be removed from the arms until the canopyhas first been raised.

In the present lighting fixture, there has been secured locking meansfor the globe without the use of screws and the globe is doubl locked inplace when the fixture is comp etely assembled and the canopypositioned. When the canopy is raised, the upper edge of the globe maybe grasped by the operator and then by pressing inwardly the disk holderfinger in the wide slot may be sprung upwardly over the tang in thethird finger and the globe will be released due to. the spring action.oi. the, fingers. When, it is: desired to, insert the globe,- it" isalaced in position in the two semi-rigid fingers and the disk holder isthen forced down to lock thethird finger overthelip of the globe and theholder will then-early the globe Without danger of releasing the same,and as soon as the canopy has been lowered into position,thespringfingers. and. the disk holder are positively locked'in theirengaging position.- so; that the holder, cannot be. accidentallylifted;to release the fingers.

Other mo des, of," applying the principlev of myinv-ention niay. be.employed instead of the-one explained, change, being madeas, .regards,they: mechanism.herein disclosed, provided the ineansistatedf by. any ofthe follow. ing: claims or thegequivalent: of such sta ted means beemployed.

I therefore-particula-rlypoint. out, and distinctly claim as myinvention 1. In a; lighting fixture andglobe holder, the combination ofcup. provided withv a socket and a tta :hing means, resilient fingersattachedto said cup and. provided, with ends adapted; for engagementwith a globe,- a slotted disk. mounted on said fingers and adapted{ in;onewposition to lock, said fingers in. globe engagi-ng position, and atcanopy adapted toafit, oven said-1 cup fingersand. to lock said; diskagainst upward 1 movement, to prevent accidental; release of saidfingers when; said. canopy isinv position.-

21; In alighting fixture and: globeiholder, the-combination of. a cupprovided with a socket, aplurality, of. downwardly and outwardlyextending spring fingers: attached at their upper ends to said cup, saidfingers having their lower ends adapted for engagement, with. the; lipof" a globe said fingers being normally spread apart to receive a globe,and a holder disk having slots to receive said lingers, 7 two. of! suchslots snugly receiving said fingers, the other such slot being wider,said first fingers having means to retain the samein" engagement withthe edges. of such respective slots, such third finger having means-fordetachably engaging such wider slot to permit the displacement' ot said.fin gersv from its globe, engaging position.

3. Ina lighting fixture and;globe holder, the combination of a cup,provided. with a socket, a plurality of downwardly and out wardlyextending spring fingers attached. at their. upper ends. to said. cup,said fingers havin'g their lower. ends adapted for engagement; with. thelip of a; globe, said' fingers being normally spread apart to receive aglobe, a holder disklia'vingslots:to receive said fingers,.t wo ofsuchslots snugly receiving saidi fingers the, other such slot beingwider, said first fingers having means to retain, the same; in,engagement with. the edges. of such. respective slots, such third fingerhaving means for detachably engaging suchwider slot to permit thedisplacement of said-fingers flOll'l'ltS globe. engaging position, and acanopy. adapted to fit over and: enclose said fingersand. holder andadapted toyp-revent, upward. movement of said=h0lder disk.

Signedby me, this llthday of. February, 1922.

FREDERICK W. .WAKEFIELD.

